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Most Popular Time Zones, According to Google

May 23, 2024~6 mins read time

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To answer this we be using the Google Trends Explorer tool.

This tool from Google allows you to compare search terms based on search interest relative to the highest point for the given region and time. It is measured on an index from 0-100.

We will need to be a bit creative as people naturally search time zones using different key works. Others will search by country, by time zone abbreviation or city. Similarly, people may search using different phrases like 'what time is in...' or 'time now in..' or 'GMT to EST' and so on.

screenshot from Google Trends, showcasing a plot graph of the five most common time zones

Starting off we are comparing search indexes across the most well-known time zones:

  • GMT: Greenwich Mean Time

  • EST: Eastern Standard Time

  • UTC: Universal Time Coordinated

  • IST: Indian Standard Time

  • CST: China Standart Time

  • JST: Japan Standard Time

  • AST: Arabia Standard Time

  • PT: Pacific Time

The image shows a graph for the last 12 months, for clarity. However, I did try different time ranges. I also varied the search terms, using Capitals or slightly different wording. None of which yield any significant difference in the ranking.

  1. EST

  2. UTC

  3. IST

  4. GMT

  5. CST

PT would be in 6th. AST and JST, both scored high in terms of raising search trends. As mentioned, it is also important to compare using different keywords. After all, most people would be searching by country instead of time zone naming convention.

screenshot from Google Trends, showcasing % interest for various time zone conversion keywords such as time now in different countries and what is the time now in a specific place

We can see that India, US and UK are still ranking on the top while Arabia and Japan are trending upwards. It is also interesting to see increasing searches for Canada and Australia.

Why Eastern Time is the most commonly used Time Zone

Eastern Time is so popular because it is observed in many countries. U.S. States such as Delaware, Florida, Georgia, New York, Ohio, Virginia, Canadian Provinces/Territories, Caribbean Countries, Mexican states, Jamaica, and Panama are some examples. They use EST for winter or summer time (switching with EDT ), while some stay on EST all year around.

What about the rest?

There is no suprise that UTC is in second place, as it is crucial for global coordination in communication, aviation, and computing, serving as the baseline for all other time zones. IST ranks high due to India's vast population and significant role in the global tech industry, necessitating frequent time zone conversions. GMT, historically significant and still widely used in navigation and broadcasting, remains a key reference point for global timekeeping. CST covers China, the world's most populous country and a global economic powerhouse, making accurate time coordination essential for international business and trade.

Analysis on Emerging Time Zones

PT: Pacific Time

Pacific Time (PT), used by major tech hubs like Silicon Valley and cities like Los Angeles, ranks just outside the top five. The tech industry's global reach and the entertainment sector's influence contribute to PT's frequent searches.

AST: Arabia Standard Time

Arabia Standard Time (AST) is rising in search trends due to the growing economic significance of countries in the Middle East. The UAE, in particular, with its status as a global business and tourism hub, drives much of this interest.

JST: Japan Standard Time

Japan Standard Time (JST) is also trending upwards, reflecting Japan's ongoing economic influence and technological advancements. As a major player in global finance and innovation, Japan necessitates frequent time zone conversions.

Top 5 Time Zones Ranked by Population

Whould things change if we looked at population instead of search volume?

  1. China Standard Time (CST) with over 1.4 billion people

China's single time zone, CST, covers the entire country despite its vast size, ensuring uniformity in business and government operations. This time zone's high population count reflects China's status as the world's most populous country and a major global economic powerhouse.

  1. Indian Standard Time (IST) with approximately 1.4 billion people

IST is solely used in India and Sri Lanka, with India being the second most populous country globally. India's significant population drives substantial economic and technological activities, making IST crucial for global coordination.

  1. Indochina Time (ICT) with around 245 million people

ICT includes several Southeast Asian nations with growing economies and dense populations. Thailand and Vietnam, in particular, are emerging as important regional hubs for commerce and industry.

The discrepancy between the top time zones by population and those by Google search interest arises from the difference between demographic presence and digital activity. Time zones like CST and IST cover highly populous regions, reflecting where the majority of people live. However, time zones like EST, GMT, and UTC dominate Google searches due to their significance in global business, finance, and media. Regions with high internet penetration and international influence, such as the U.S. and the UK, generate more search activity related to their time zones, even if their populations are smaller.

It is also interesting to explore where most time zone searches themselves are taking place

Interestingly, a significant number of time zone conversions are conducted in Nigeria. This could be due to Nigeria's increasing global business connections and its need to coordinate with international partners. As Africa's largest economy, Nigeria has extensive ties with countries operating on Eastern Time, driving the need for accurate time conversions.

Following Nigeria, Ghana is the second most active in time zone conversions. Like Nigeria, Ghana has a rapidly growing economy and strong international business relationships. Both countries are hubs for trade, finance, and telecommunications, requiring them to frequently align with partners in different time zones.

Other Countries Conducting Time Zone Conversions:

  • United Arab Emirates (UAE): A major global business center, the UAE coordinates with various time zones to manage international trade and finance operations.
  • Jamaica: Located in the Caribbean, Jamaica has close ties with the U.S. and Canada, both of which use Eastern Time, necessitating frequent time zone conversions.
  • Cameroon: Another African nation with growing international connections, particularly in business and trade, making accurate time coordination essential.

screenshot from Google Trends, showcasing interest by region, for time zone conversions

Is there a common factors among these countries?

The common thread among these countries is their significant international business activities and global connections. Africa's leading economies, Nigeria and Ghana, are increasingly integrated into the global market, requiring them to manage time differences efficiently. Meanwhile, the UAE's position as a business hub, Jamaica's proximity to Eastern Time zone countries, and Cameroon's expanding global ties also drive the need for frequent time zone conversions.


The most commonly used or searched time zones often reflect regions with high population densities and significant international business activities, with Eastern Standard Time (EST) standing out at the top.

The link between time zone conversions and economic growth is more significant than it appears. Countries that frequently convert to popular time zones like Eastern Standard Time (EST) and Eastern Daylight Time (EDT) often exhibit robust international business activities. This connection underscores the importance of time zone management in today’s global economy.

Avoid the time zone confusion by using our free and visual time zone convertor here.

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Sofia Kyriazidi


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